71.0ml portion of 1.30m solution is diluted to a total volume or 268ML
To dilute a 71.0ml portion of 1.30m solution to a total volume of 268ML, you will need to calculate the amount of water needed to dilute the solution.
Using the equation:
M1V1 = M2V2
where M1 is the initial concentration, V1 is the initial volume, M2 is the final concentration, and V2 is the final volume, we can calculate the final concentration of the diluted solution.
M1 = 1.30m
V1 = 71.0ml
M2 = unknown (let's call this X)
V2 = 268ML
Rearranging the equation to solve for X, we have:
M2 = (M1 x V1) / V2
X = (1.30m x 71.0ml) / 268ML
X = 0.344m
Therefore, the final concentration of the diluted solution is 0.344m. To prepare this solution, you will need to add (268ML - 71.0ml) = 197ML of water to the 71.0ml portion of the initial solution.